Good, sharp fletching stripper, glue, the fletching of your choice, and a fletching jig. Unless you get a jig with the same offset or helical, you may need to re-fletch the whole arrow. You may get lucky and be able to put the new fletch in the same spot, and won't have to do all 3. I bought a Grayling fletching jig, about 30 bucks, a tube of fletch tight, about 5 bucks, fletching, and I use a commercially availabe stripper to strip the old fletch off. Fairly inexpensive, and fun to do. Strip off the old feather, taking time to get all of the glue off, clean with alcohol, and glue on the new feather. Pretty simple, if you get the clamp set right. The Grayling isn't the best jig on the market, but, for me, since I do so few arrows, it is perfect. Good luck, and have fun.